Indicators | 0 ~ < 1 year (n = 103) | 1 ~ < 3 year (n = 51) | 3 ~ < 6 year (n = 60) | 6 ~ 14 year (n = 6) | χ2 | P Value |
---|---|---|---|---|---|---|
Lung infection | 12(11.88%) | 7(13.73%) | 10(16.95%) | 1(20.00%) | 0.97 | 0.807 |
Texture thickening | 3(2.97%) | 4(7.84%) | 3(5.08%) | 0(0.00%) | 2.05 | 0.561 |
Capillary bronchitis | 1(0.99%) | 7(13.73%) | 3(5.08%) | 0(0.00%) | 6.47 | 0.091 |
Bronchitis | 76(75.25%) | 27(52.94%) | 34(57.63%) | 4(80.00%) | 4.84 | 0.184 |
Nothing out of the ordinary | 9(8.91%) | 6(11.76%) | 9(15.25%) | 1(20.00%) | 1.53 | 0.675 |
Unchecked | 2 | 0 | 1 | 1 | - | - |